This product is no longer available for sale. The seller may be offering an improved version or it may be hanging out on the beach, enjoying the retired life.
A collection of odds and end from personal projects that interest me.
This Multi-LED joule thief is designed to drain that little extra bit of power from your used batteries while providing usable light. This circuit is based of the popular joule thief circuit found throughout the DIY electronics community but with more LEDs.
AA battery not included
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I am a mechanical engineer who tinkers with electronics in my spare time. Check out my personal blog where I post most of my projects and interests: samueldperry.com